"MUST BE ABLE TO TOLERATE AMBIGUITY:" I never did figure this one out, and no one would tell me what it meant. ;) Seriously, this is (was?) an important skill in my ex-job.

Years ago, when I worked as an engineer for a very large aircraft manufacturer, I had a supervisor who was famous for equivocating on every decision that had to be made. Another engineer asked "Well, Art, do you ever have trouble making decisions?" "Well, yes and no." he answered.